Python tools to compute note models from note-level audio-score alignment.
Currently the algorithm computes the stable pitch and a pitchdistribution of each aligned note.
from alignednotemodel.alignednotemodel import AlignedNoteModel
alignedNoteModel = AlignedNoteModel(kernel_width=7.5, step_size=7.5, pitch_threshold=50)
note_models, pitch_distribution, new_tonic = alignedNoteModel.get_models(pitch, aligned_notes,
tonic_symbol)Instantiation parameters are:
# kernel_width : The width of the Gaussian kernel used to compute the pitch distribution
# (default: 7.5 cent ~ 1/3 Hc)
# step_size : The step size between each bin of the pitch distribution (default: 7.5 cent
# ~ 1/3 Hc)
# pitch_threshold : Max cent difference for two pitch calues to be considered close. Used in
# stable pitch computation (default: 50 cent, a quarter tone)The inputs for the get_models method are:
# pitch : an n-by-2 matrix, where the values in the first column are
# the timestamps and the values in the second column are frequency
# values
# aligned_notes : the list of aligned notes. This is read from the alignedNotes.json
# output from the fragmentLinker (https://github.com/sertansenturk/fragmentLinker)
# repository
# tonic_symbol : The tonic symbol in the symbTr format (e.g. B4b1)The outputs are:
# note_models : The model for each note symbol
# pitch_distribution : The pitch distribution computed from the pitch input
# new_tonic : The updated tonic according to the note model of the tonic symbolPlease refer to note_model.ipynb for an interactive demo.
If you want to install the repository, it is recommended to install the package and dependencies into a virtualenv. In the terminal, do the following:
virtualenv env
source env/bin/activate
python setup.py install
If you want to be able to edit files and have the changes be reflected, then install the repository like this instead
pip install -e .
The algorithm uses several modules in Essentia. Follow the instructions to install the library.
Now you can install the rest of the dependencies:
pip install -r requirements
Sertan Şentürk contact@sertansenturk.com
Thesis